Columbia Women's Plus Size Silver Ridge Plaid Long Sleeve Shirt 100% Other Fibers Imported Omni-Wick technology Omni-Shade UPF 30 sun protection Sun protection collar. Vented. Roll-up sleeve Roll-up sleeves with tab holders. Zippered chest pocket Pocket with hook and loop closure. Stash pocket. Sun protection cuff Omni-Wick Advanced Evaporation Omni-Shade UPF 30 Sun Protection Zippered Chest Pocket Sun Protection Collar